Combined filter, aerator and spray cooling unit for swimming pools



FIG. 1 is a perspective view of a combined filter, aerator and spray cooling unit for swimming pools showing my new design;

FIG. 2 is a side elevational view thereof, with portions of the intake pipe and spray nozzle in section for convenience of illustration;

FIG. 3 is a top plan view thereof; and

FIG. 4 is a cross sectional view taken on line 4--4 of FIG. 2.

The fragmentary broken line representation of a swimming pool in FIGS. 1 and 2 is for purposes of illustration only. 

The ornamental design for a combined filter, aerator and spray cooling unit for swimming pools, as shown and described. 